Alkaloids 1,ii and iii from pentadiplandra brazzeana - - by ethanolic extraction of the root

摘要

Prepn. of alkaloids I, II and III from Pentadiplandra brazzeana, by 95% ethanolic extraction of the dried root. The alkaloids have unspecified uses in industry and as drugs. The individual alkaloids are isolated by chromatography or by solvent fractionation. Alkaloid I is extracted from the concentrated ethanolic extract with light petroleum. The residual phase, when treated with CHCl3 and alkali gives II when the CHCl3 is evaporated. Alkaloid III remains in the phase after sepn of the CHCl3 extract.